Philips Respironics DreamStation Reusable Pollen Filter

Part#: 1122446  |  HCPCS: A7039  |  By Philips Respironics  |  Made in USA

Required for All DreamStation CPAP & BiPAP Machines  |  Dark Blue Housing  |  Washable Foam Filter Medium  |  Clean Every 2 Weeks  |  Replace Every 6 Months  |  88% Efficiency at 7–10 Micron  |  Sold Individually

The DreamStation Reusable Pollen Filter is a required component for all Philips Respironics DreamStation Original Series CPAP and BiPAP machines — the machine must not be operated without this filter in place. The dark blue plastic housing holds a permanently attached white foam filter medium that captures household dust, pollen, mold spores, and pet dander from room air before it enters the machine's blower and motor, protecting internal components and reducing airborne particulates in the therapy air. The foam medium should be cleaned every 2 weeks (or sooner when visibly dirty) and the filter replaced every 6 months (or sooner if damaged). The white foam filter is permanently bonded to the dark blue housing — the two components are not designed to be separated. Part# 1122446. HCPCS A7039. Sold individually. Made in USA. By Philips Respironics.

Specifications

Compatible DreamStation Machines

For complete filtration, use the reusable pollen filter (1122446, dark blue) together with the companion Disposable Ultra-Fine Filter (1122447, lighter blue) which catches smaller particles. Call 1-866-218-0902 for ultra-fine filter availability.

Key Features

• Required for DreamStation machine operation — Philips Respironics specifies that DreamStation CPAP and BiPAP machines must never be operated without the foam pollen filter in place; running without the filter allows unfiltered room air to enter the motor and blower, accumulating dust and debris that degrades machine performance and service life
• Dark blue housing — easy to identify — the dark blue plastic frame distinguishes the reusable pollen filter from the companion disposable ultra-fine filter (1122447), which has a lighter blue plastic frame; knowing the color distinction ensures the correct filter is installed in the correct position
• Permanently attached filter medium — the white foam filter is bonded to the dark blue plastic housing; the two components are not designed to be separated; cleaning and replacement treats the entire assembled unit
• Washable and reusable — rinse with warm water every 2 weeks (or when visibly dirty), allow to dry completely before reinserting, and replace the entire filter every 6 months or when damaged
• 88% filtration efficiency at 7–10 micron — captures household dust, pollen, mold spores, and pet dander; provides the first-stage particulate filtration before the ultra-fine filter handles smaller particles
• HCPCS A7039 — the correct HCPCS code for insurance billing of disposable/replacement filters for CPAP/BiPAP equipment
• Made in USA | Genuine Philips Respironics replacement | Sold individually

Clinical FAQs

Is the pollen filter truly required for DreamStation use — what happens if the machine is run without it?

Yes — Philips Respironics explicitly states that DreamStation CPAP and BiPAP machines should never be operated without the foam pollen filter in place. The pollen filter serves two functions simultaneously: protecting the machine's internal components and filtering the patient's therapy air. Without the pollen filter, unfiltered room air passes directly into the machine's motor and blower assembly with each breath cycle. Over time, the accumulated dust, pet hair, pollen, and particulate debris inside the blower degrades performance, reduces airflow efficiency, increases motor noise, and can shorten the machine's service life. From the patient's perspective, operating without the filter means all of these particles are also being delivered into the breathing circuit and ultimately into the patient's airway during therapy — potentially worsening nasal or airway symptoms. One CPAP user in a verified review on the product page noted that they had been getting sick repeatedly until they discovered their filter was dirty and needed changing — a reminder that filter maintenance directly affects the patient's health outcomes during therapy, not just machine longevity.

What is the difference between the DreamStation pollen filter (1122446, dark blue) and the ultra-fine filter (1122447, lighter blue)?

The DreamStation uses a two-stage filtration system at its air intake, and the two filter types work together rather than being interchangeable alternatives. The reusable pollen filter (1122446, dark blue housing) is the outer first-stage filter — a foam medium that catches larger particles at 88% efficiency at 7–10 micron, including dust, pollen, mold spores, and pet dander. It is washable, reusable, and replaced every 6 months. The disposable ultra-fine filter (1122447, lighter blue housing) is the second-stage filter for smaller particles — a finer medium that is not washable and is replaced every 30 days. The plastic housing color is the practical identifier: dark blue for the reusable foam pollen filter; lighter blue for the disposable ultra-fine filter. The filters occupy different positions in the machine's intake housing. For complete two-stage filtration as Philips Respironics recommends, both filters are used simultaneously — the pollen filter reduces the particle burden on the ultra-fine filter, extending the ultra-fine filter's effective life and together providing comprehensive intake filtration. Running only the pollen filter without the ultra-fine filter provides adequate protection for the machine but allows smaller particles through that the ultra-fine filter would catch; running only the ultra-fine filter without the pollen filter violates Philips' operating requirement and allows the ultra-fine filter to load much more quickly with larger particles it is not optimized to handle alone.

Is this filter compatible with the DreamStation 2, and how do I know which DreamStation generation I have?

The 1122446 pollen filter is compatible with all DreamStation Original Series machines (DreamStation CPAP, DreamStation Auto CPAP, DreamStation Pro CPAP, DreamStation BiPAP, DreamStation BiPAP Auto, DreamStation BiPAP AVAPS). It is not compatible with the DreamStation 2 (released in 2021), which uses a different filter system with a different housing shape and mounting mechanism. The easiest way to identify which generation you have: the DreamStation 2 has a distinctly different physical design — it is smaller, more cube-shaped with a square profile, and has a different filter compartment location compared to the wider, more rectangular DreamStation Original. The model name is also printed on the front face of the machine. If you are unsure which DreamStation generation you have, look at the model designation on the machine label (typically on the bottom or back) — the Original Series will show "DreamStation" followed by the model type, while the second generation will show "DreamStation 2." Call us at 1-866-218-0902 if you need help confirming your machine model and the correct filter part number before ordering.

Questions about the DreamStation pollen filter, compatible ultra-fine filters, or CPAP supply replenishment? Call our product specialists: 1-866-218-0902  |  Mon–Fri 9am–5pm, Sat 9am–3pm EST